Buggy code:
public class Meta { public static String docs ( ) { } @ api public static class runas implements Function { public String getName ( ) { } public Integer [ ] numArgs ( ) { } public Construct exec ( int line_num , File f , final Env env , Construct ... args ) throws CancelCommandException , ConfigRuntimeException { if ( ( ( ( args [ 1 ] . nval ( ) ) == null ) || ( ( args [ 1 ] . val ( ) . length ( ) ) <= 0 ) ) || ( ( args [ 1 ] . val ( ) . charAt ( 0 ) ) != '//' ) ) { throw new ConfigRuntimeException ( "The<seq2seq4repair_space>first<seq2seq4repair_space>character<seq2seq4repair_space>of<seq2seq4repair_space>the<seq2seq4repair_space>command<seq2seq4repair_space>must<seq2seq4repair_space>be<seq2seq4repair_space>a<seq2seq4repair_space>forward<seq2seq4repair_space>slash<seq2seq4repair_space>(i.e.<seq2seq4repair_space>'//give')" , ExceptionType . FormatException , line_num , f ) ; } String cmd = args [ 1 ] . val ( ) . substring ( 1 ) ; if ( ( args [ 0 ] ) instanceof CArray ) { CArray u = ( ( CArray ) ( args [ 0 ] ) ) ; for ( int i = 0 ; i < ( u . size ( ) ) ; i ++ ) { exec ( line_num , f , env , new Construct [ ] { new CString ( u . get ( i , line_num , f ) . val ( ) , line_num , f ) , args [ 1 ] } ) ; } return new CVoid ( line_num , f ) ; } if ( args [ 0 ] . val ( ) . equals ( "~op" ) ) { Boolean isOp = env . GetCommandSender ( ) . isOp ( ) ; if ( ( ( Boolean ) ( Static . getPreferences ( ) . getPreference ( "debug-mode" ) ) ) ) { if ( ( env . GetCommandSender ( ) ) instanceof MCPlayer ) { Static . getLogger ( ) . log ( Level . INFO , ( ( ( "[CommandHelper]:<seq2seq4repair_space>Executing<seq2seq4repair_space>command<seq2seq4repair_space>on<seq2seq4repair_space>" + ( env . GetPlayer ( ) . getName ( ) ) ) + ":<seq2seq4repair_space>" ) + ( args [ 1 ] . val ( ) . trim ( ) ) ) ) ; } else { Static . getLogger ( ) . log ( Level . INFO , ( "[CommandHelper]:<seq2seq4repair_space>Executing<seq2seq4repair_space>command<seq2seq4repair_space>from<seq2seq4repair_space>console<seq2seq4repair_space>equivalent:<seq2seq4repair_space>" + ( args [ 1 ] . val ( ) . trim ( ) ) ) ) ; } } if ( ! isOp ) { this . setOp ( env . GetCommandSender ( ) , true ) ; } try { Static . getServer ( ) . dispatchCommand ( this . getOPCommandSender ( env . GetCommandSender ( ) ) , cmd ) ; } finally { if ( ( ( ( env . GetPlayer ( ) ) != null ) && ( ! ( cmd . equalsIgnoreCase ( ( "op<seq2seq4repair_space>" + ( env . GetPlayer ( ) . getName ( ) ) ) ) ) ) ) && ( ! ( cmd . equalsIgnoreCase ( ( "deop<seq2seq4repair_space>" + ( env . GetPlayer ( ) . getName ( ) ) ) ) ) ) ) { this . setOp ( env . GetCommandSender ( ) , isOp ) ; } } } else { <START_BUG> MCPlayer m = Static . getServer ( ) . getPlayer ( args [ 0 ] . val ( ) ) ; <END_BUG> if ( ( m != null ) && ( m . isOnline ( ) ) ) { if ( ( env . GetCommandSender ( ) ) instanceof MCPlayer ) { Static . getLogger ( ) . log ( Level . INFO , ( ( ( "[CommandHelper]:<seq2seq4repair_space>Executing<seq2seq4repair_space>command<seq2seq4repair_space>on<seq2seq4repair_space>" + ( env . GetPlayer ( ) . getName ( ) ) ) + ":<seq2seq4repair_space>" ) + ( args [ 0 ] . val ( ) . trim ( ) ) ) ) ; } else { Static . getLogger ( ) . log ( Level . INFO , ( "[CommandHelper]:<seq2seq4repair_space>Executing<seq2seq4repair_space>command<seq2seq4repair_space>from<seq2seq4repair_space>console<seq2seq4repair_space>equivalent:<seq2seq4repair_space>" + ( args [ 0 ] . val ( ) . trim ( ) ) ) ) ; } Static . getServer ( ) . dispatchCommand ( m , cmd ) ; } else { throw new ConfigRuntimeException ( ( ( "The<seq2seq4repair_space>player<seq2seq4repair_space>" + ( args [ 0 ] . val ( ) ) ) + "<seq2seq4repair_space>is<seq2seq4repair_space>not<seq2seq4repair_space>online" ) , ExceptionType . PlayerOfflineException , line_num , f ) ; } } return new CVoid ( line_num , f ) ; } public ExceptionType [ ] thrown ( ) { } public String docs ( ) { } public boolean isRestricted ( ) { } public void varList ( IVariableList varList ) { } public boolean preResolveVariables ( ) { } public String since ( ) { } public Boolean runAsync ( ) { } protected void setOp ( MCCommandSender player , Boolean value ) { } protected MCCommandSender getOPCommandSender ( final MCCommandSender sender ) { } } @ api public static class run implements Function { public String getName ( ) { } public Integer [ ] numArgs ( ) { } public Construct exec ( int line_num , File f , Env env , Construct ... args ) throws CancelCommandException , ConfigRuntimeException { if ( ( ( ( args [ 0 ] . nval ( ) ) == null ) || ( ( args [ 0 ] . val ( ) . length ( ) ) <= 0 ) ) || ( ( args [ 0 ] . val ( ) . charAt ( 0 ) ) != '//' ) ) { throw new ConfigRuntimeException ( "The<seq2seq4repair_space>first<seq2seq4repair_space>character<seq2seq4repair_space>of<seq2seq4repair_space>the<seq2seq4repair_space>command<seq2seq4repair_space>must<seq2seq4repair_space>be<seq2seq4repair_space>a<seq2seq4repair_space>forward<seq2seq4repair_space>slash<seq2seq4repair_space>(i.e.<seq2seq4repair_space>'//give')" , ExceptionType . FormatException , line_num , f ) ; } String cmd = args [ 0 ] . val ( ) . substring ( 1 ) ;

Fix:
MCPlayer m = Static . GetPlayer ( args [ 0 ] . val ( ) ) ;